Cas no 2820-37-3 (4,5-dimethyl-1H-pyrazole)
4,5-Dimethyl-1H-pyrazole is a heterocyclic organic compound featuring a pyrazole core substituted with methyl groups at the 4 and 5 positions. This compound is widely utilized as a versatile intermediate in organic synthesis, particularly in the preparation of pharmaceuticals, agrochemicals, and coordination chemistry ligands. Its rigid structure and electron-donating methyl groups enhance its utility in forming stable metal complexes, making it valuable in catalysis and material science. The compound’s high purity and consistent reactivity ensure reliable performance in synthetic applications. Additionally, its well-defined molecular structure facilitates precise modifications for targeted chemical transformations.
4,5-dimethyl-1H-pyrazole structure
Product Name:4,5-dimethyl-1H-pyrazole
CAS No:2820-37-3
MF:C5H8N2
MW:96.1304
MDL:MFCD26678592
CID:255741
PubChem ID:137735
Update Time:2025-06-07
4,5-dimethyl-1H-pyrazole Chemical and Physical Properties
Names and Identifiers
-
- 3,4-Dimethyl-1H-pyrazole
- 3,4-DIMETHYL PYRAZOLE
- 3(5),4-dimethylpyrazole
- 3,4-Dimethyl-1H-pyrazol
- 3,4-dimethyl-1Hpyrazole
- 3,5-dimethylpyrazole
- 4,5-dimethyl-1H-pyrazole
- dimethylpyrazole
- 3,4-DIMETHYLPYRAZOLE
- 1H-Pyrazole, 3,4-dimethyl-
- 7LF1K5QUJ0
- 1H-Pyrazole, 4,5-dimethyl-
- VQTVFIMEENGCJA-UHFFFAOYSA-N
- AK117330
- 1H-Pyrazole,4,5-dimethyl-
- Pyrazole, 3,4-dimethyl-
- 3,4-Dimethyl 1H-pyrazole
- 3,4-Dimethyl-1H-pyrazole #
- FCH835625
- STK328049
- SB16018
- O
- 88054-15-3
- MFCD00462154
- AS-58092
- CS-W005197
- DTXSID90182465
- J-016999
- CHEBI:148437
- UNII-7LF1K5QUJ0
- DA-07368
- EC 429-130-1
- SY024902
- EN300-191675
- 3 pound not4-Dimethyl-1H-pyrazole
- 2820-37-3
- G69345
- PD057829
- NS00077735
- 3,4-DIMETHYL-2H-PYRAZOLE
- Q27268518
- DTXCID00104956
- 3,4-Dimethyl-1H-pyrazole, >=97.0%
- pyrazole, 3(5),4-dimethyl-
- 3,4-Dimethyl-1H-pyrazole, analytical standard
- AKOS005431123
-
- MDL： MFCD26678592
- Inchi： 1S/C5H8N2/c1-4-3-6-7-5(4)2/h3H,1-2H3,(H,6,7)
- InChI Key： VQTVFIMEENGCJA-UHFFFAOYSA-N
- SMILES： N1([H])C(C([H])([H])[H])=C(C([H])([H])[H])C([H])=N1
Computed Properties
- Exact Mass: 96.06870
- Monoisotopic Mass: 96.069
- Isotope Atom Count: 0
- Hydrogen Bond Donor Count: 1
- Hydrogen Bond Acceptor Count: 1
- Heavy Atom Count: 7
- Rotatable Bond Count: 0
- Complexity: 63.1
- Covalently-Bonded Unit Count: 1
- Defined Atom Stereocenter Count: 0
- Undefined Atom Stereocenter Count : 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Surface Charge: 0
- Tautomer Count: 2
- XLogP3: 1
- Topological Polar Surface Area: 28.7
Experimental Properties
- Color/Form: No data available
- Density: 0.9325
- Melting Point: 44-46°C
- Boiling Point: 220.3℃ at 760 mmHg
- Flash Point: 98.7±11.7 °C
- Refractive Index: 1.4739 (estimate)
- Water Partition Coefficient: Slightly soluble in water.
- PSA: 28.68000
- LogP: 1.02650
4,5-dimethyl-1H-pyrazole Security Information
-
Symbol:
- Signal Word：Danger
- Hazard Statement： H302-H318-H412
- Warning Statement： P273-P280-P305+P351+P338
- Hazardous Material transportation number：NONH for all modes of transport
- WGK Germany：3
- Hazard Category Code： 22-41-52/53
- Safety Instruction： 26-39-61
-
Hazardous Material Identification：
- Storage Condition：Sealed in dry,Room Temperature
4,5-dimethyl-1H-pyrazole Pricemore >>
| Related Categories | No. | Product Name | Cas No. | Purity | Specification | Price | update time | Inquiry |
|---|---|---|---|---|---|---|---|---|
| Chemenu | CM120449-5g |
3,4-Dimethylpyrazole |
2820-37-3 | 95+% | 5g |
$156 | 2021-08-06 | |
| Chemenu | CM120449-10g |
3,4-Dimethylpyrazole |
2820-37-3 | 95+% | 10g |
$216 | 2021-08-06 | |
| Chemenu | CM120449-25g |
3,4-Dimethylpyrazole |
2820-37-3 | 95+% | 25g |
$388 | 2021-08-06 | |
| Chemenu | CM120449-100g |
3,4-Dimethylpyrazole |
2820-37-3 | 95+% | 100g |
$1356 | 2021-08-06 | |
| TRC | D478930-100mg |
3,4-Dimethylpyrazole |
2820-37-3 | 100mg |
$ 87.00 | 2023-09-07 | ||
| TRC | D478930-1g |
3,4-Dimethylpyrazole |
2820-37-3 | 1g |
$ 138.00 | 2023-09-07 | ||
| TRC | D478930-2g |
3,4-Dimethylpyrazole |
2820-37-3 | 2g |
$173.00 | 2023-05-18 | ||
| TRC | D478930-5g |
3,4-Dimethylpyrazole |
2820-37-3 | 5g |
$224.00 | 2023-05-18 | ||
| TRC | D478930-10g |
3,4-Dimethylpyrazole |
2820-37-3 | 10g |
$282.00 | 2023-05-18 | ||
| TRC | D478930-25g |
3,4-Dimethylpyrazole |
2820-37-3 | 25g |
$ 402.00 | 2023-09-07 |
4,5-dimethyl-1H-pyrazole Related Literature
-
Ying Shao,Jingjing Tong,Yanwei Zhao,Hao Zheng,Liang Ma,Meihua Ma,Xiaobing Wan Org. Biomol. Chem. 2016 14 8486
-
Pilar Cornago,Pilar Cabildo,Rosa M. Claramunt,Latifa Bouissane,Elena Pinilla,M. Rosario Torres,José Elguero New J. Chem. 2009 33 125
-
Marco Scheurer,Heinz-Jürgen Brauch,Carsten K. Schmidt,Frank Sacher Environ. Sci.: Processes Impacts 2016 18 999
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